EP 3916704 A1 20211201 - SUBSTRATE FOR DISPLAY
Title (en)
SUBSTRATE FOR DISPLAY
Title (de)
SUBSTRAT FÜR ANZEIGE
Title (fr)
SUBSTRAT POUR DISPOSITIF D'AFFICHAGE
Publication
Application
Priority
- KR 20190009764 A 20190125
- KR 2020001049 W 20200122
Abstract (en)
A display substrate according to the embodiment includes a base material containing chromium and iron, wherein the base material includes a surface portion and a central portion, the surface portion is defined as a depth region from a surface of the base material to a depth of 5 nm in a thickness direction of the base material, and a ratio of chromium atoms to iron atoms (Cr/Fe) of the surface portion is greater than that of the central portion.
IPC 8 full level
CPC (source: CN EP KR US)
C22C 38/18 (2013.01 - US); G06F 1/1616 (2013.01 - EP KR); G06F 1/1641 (2013.01 - KR); G06F 1/1652 (2013.01 - EP); G06F 1/1681 (2013.01 - EP); G09F 9/301 (2013.01 - CN KR US); H04M 1/0216 (2013.01 - EP); H10K 71/233 (2023.02 - US); H10K 77/111 (2023.02 - EP); H04M 1/0268 (2013.01 - EP); Y02E 10/549 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3916704 A1 20211201; EP 3916704 A4 20220921; CN 113366560 A 20210907; CN 113366560 B 20230428; CN 116072002 A 20230505; JP 2022511834 A 20220201; JP 2023015034 A 20230131; JP 7155431 B2 20221018; JP 7414925 B2 20240116; KR 102665422 B1 20240510; KR 20200092635 A 20200804; KR 20240065062 A 20240514; TW 202034035 A 20200916; TW I837283 B 20240401; US 2021383732 A1 20211209; WO 2020153732 A1 20200730
DOCDB simple family (application)
EP 20744548 A 20200122; CN 202080011003 A 20200122; CN 202211645237 A 20200122; JP 2021531678 A 20200122; JP 2022161014 A 20221005; KR 20190009764 A 20190125; KR 2020001049 W 20200122; KR 20240060088 A 20240507; TW 109102284 A 20200121; US 202017284532 A 20200122